Torch.



o. JOHNSON".4

TORCH.

A?PLIGATION FILED MAR.24,1910.

Patented Sept. 13, 1910.

2 BHBETS-BEEET V1.

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C. JOHNSON.

TORCH.

APPLIOATION FILED MAR/24, 1910,

Patented Sept. 13, 1910.

2 SHEETS-SHEET 2.

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CARL JOHNSON, OF CHICAGO, ILLINOIS.

TORH.

Specification ot'Lettei-s Patent.

Patented Sept. l13, 1910.

Application filed March 24, 1910. Serial No. 551,334.

To cZZ whom it may concern;

Be it known that I, CARL JOHNSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Torches, of which the following is a speciication.

lhe principal object of my invention 1s to provide a new and improved torch for Welding, brazing, cutting metal, or other like uses.

Another object of my invention is to pro vide such a torch' having an improved mechanical structure so that it shall combine the fuel and the supply of oxygen in au ad- VllltlgeOllS Hlilllllel.

Another object of my invention is to provide such' a torch that can easily be laken apart and that shall not be likely to getout olf order.l A

Another object is to make such a torch that shall be simple and inexpensive` to build, and easy to operate by comparatively unskilled persons. I f

Another objectis to make a torch that can readily be changed, so as to give either a welding flame-or a cutting llame as may be desired.

. fill these objects and others will be more fully disclosed to those skilled in the art by reading the 'following' specification and claims, taken in connection with the accompanying drawings.

F or the purpose of illustrating and ex plaining my invention, I have shown one specific embodiment thereof in the accompanying drawings, but l have defined the invention in the claims which are appended at the end of this specification.

Referring to the drznvings---Figlu'e 1 is a side elevation. Fig. 2 .is a vertical section through the, axis of the head oit thc torch. Fig. l3 is rear elevation of theheader to Which the rear ends of the tubes are attached. Fi l is a vertical section on the line 4, 4l 01:'Y 4`ig. 5, showing the asbestos filling in one of the tubes. Fig. 5 is a cross section on the line 5, 5 of Fig. 1. Fig. 6 is an. elevation of the welding tip. Fig. 7 is an elevation of the same with the plug in place. ig. 8 is'a sectional view of the plug. Fig. 9 isa plan view of a detail or attachment'by which the parts are suitably connected to the tubes, a port-ion being roken away. Fig. 10 is a side elevation of the same. Fig. 11 isfan elevation of e. connecting plug. Fig. 12 is n end `View of the.

same. ig. 13 is a deta' view ofapart by which the gas passages a're connecte Fig. 14' is a side elevation of'the same. F ig. 15 is a coupling nut. Fig. 16 is a side elevation of a screw tip. "Fig 17 is an end View of the same.

The particular embodiment of my invention which is shown in the drawings is a torch adapted to be supplied withncet lone and oxygen through suitable flexible tu "ing, thus permitting the torch to be manipulated. The acetylene gas piie 15 is brazed at its inlet end into the hea er 17 which has sockets to receive the forward ends of 'three parallel tubes 16. The ends of these tubes lll are closed with double thiclmesses' of b'rass gauze 18, which is for the purpose of retaining asbestos. Within the 4tubes 16. This asbestos is saturated with acetone in ordento purify the acetylene The rear ends of the three tubes 16 are soldered into the header, 1f), which connectsall three of the tubes 16 to the inlet valve 20.

2l. is a nipple adapted to receive the end of a flexible tube fitted over it.

The header 19 also has an independent and adapted to receive the end of a 'flexible tube. The socket 22 connects to the pipe 23,V this being intended ato convey or. gen under moderate pressure, say,about iiteen to forty pounds to the square inch.

At the forward ends of the 23 is a mixing chamber 2G, t e acetylene pipe 15 leading into the same through the opening 28 and the oxygen pipe leading .in

through the opening 27. The lower open end of this mixing chamber 2b is closed by the screw plug 2S). which has a cylindrical flange 3() around its inner end with radial pcrlorations 31 therethrough. The plug 31 has an axial hole registering with the hole 2T, and the enc of thisf'block 31 fits within the flange f-O on the plur 29. An annular groovet extends 'around the part 33 ot' the plug 31 this annular 'Groove 34s being adjacent to" the radial lholes 31. Frornfthe annular groove 34' oblique holes 35 converge to the center as shownin the drawings. It will be seen that the course of the acetylene through the passages 28,' 31, 34 and 35 brings it to mingle with the oxygen coming down through the passages 27 and 32.

socket 22, to which the inlet valve 24 con-L, neets, 25 being a nipple connected thereto i ipes 15 andl l los fa @emagister The screwiplug29 has. a dange 36 at its .lower"end, and the attachmem '37 lies adjacent this. The attachment '37 rhas a plurality'of h0lesj38' drilled into it around vthe u per'ledrgemnd vthe iiange 36 khas notches with these holes in i ."variousanfgular positions. Thus, when the plug 29` hasfbeenscrewed into the chamber 26 farv enoughto giveit the desired d -s grec 'oftightnessg and then the angular posiA 'osition of the attachment 37, mark` on the two members, n 29 may be unscrewed suffi,.- cientl'y to rop'pins in the registerin holes 38 Vand' notches 39, and then thep ug 29 screwed back to its normal'position, the atvtachnent 37 being rotated therewith. The

nutff40 engages the threaded exterior of the attachment 37 .andy the ange 36 and binds the parts snugly together.

The attachment 37 has a branch 41 with a 'i conduit'therethrough for high pressurel oxyen, 'say'ata pressure of one hundred and 'ty toltwc hundred pounds per square inch. The oxygen' pipe 42, connecting tothis branch 41,-has' a controlling valve 43and a in the" hea 'sion 4l,Y opens lower ynipple 44 to receive the end of thev supply tube.` "At'ts rear end the pipe 42 carries a lateral pro'ection 46 which-slips into a hole er- 19 and maybe clamped there by means of theset screw 47.

A cylindrical block/48 lies adjacent to the end of the attachment 37 Vand has a plurality, of conduits 49 diverging from the' centervgjthese receive the 'mixture of acety-v lene and oxygen cnming down from the mixing chamber 26I The lower ends of these diverging conduits 49 openinto a channel 50 on the lower face of the block 4l. rEhe high pressure oxygen conduit, through the' extenon the, lower face of the attachment 37 and from this point an oblique 'p conduit'l leads t'o the center of the lower..

`face ,of the block 48. The screwv tip 52 is rovided, which engages the attachment 37 and holds the cylindrical block 48 in place. A.' proper registry of the attachment 37 and block 48 is obtained by putting short pins inregistering sockets 58. The tip 52 has an annular channel 53 thatregisters with the channel v to make an annular chamber, and from this a plurality of conduits 54 converge to their outlets on the face of the tip 52. The tip 52 also has a central conduit .55, which ends in a ne aperture 57 1n ia bead 56 on the'face of thetip.

When it is desired to detach the high pgessure oxygen pipe 'unicnor coupling nut 40,

lltv Willl'eadily'be understood that the low ,iiessurc oxygen in. the pipe 23 and the acet- :"y1enc. mingle in the mixing chamber 26 and the mixture passes down through the central l 42, this can readily be y by loosening the set screw 47 and the axial conduit in the head of the torch,

branching into the conduits 49 to the annu- 4lar chamber 50,53, and then converging through the outlet openings 54. In addit1on, `a supply of high pressure oxygen discharges centrally from the tip through the orifice 57,. thus making a powerful cutting llame that may be used to cut metal. lVhen 1t 1s des1red to have a Welding flame, the tip that has been described may be removed, to-

l gether with the pipe 42, and the tip 59 may bes-crewed into the mixing chamber 26.v In this case the same block 3l is used, being engaged by the lapge 30. The welding tip l has a single axial conduit 60 for the mixed acetylene and oxygen which discharge from the extremity 6l. y r A The acetylene purifier comprises the three chambers 16 and serves as a handle by which to hold the torch. A

The particular arrangement of lconduits and mixing chamber which l. havesho'wn and described has been found to be highly eiicient in practice and gives superior Aresults. The arrangement of the-parts is such that they may be easily assembled or taken apart, and the device is simple and inexpensive to build and maintainin order. When it is desired to change the torch so as to change from a cutting flame to a welding' l lfiame or vice versa, this can-conveniently be one., y

I claim: Y

\ l. In a device of the classdescribed, an

acetylene gas pipe, an enlarged chamber interposed in said pipe, and asbestos saturated with"`acetone in said chamber.

2. In a device of the class described, a fuel gas pipe, a hollow header connected thereto, multiple tubular chambers con-4 endof the chambers. l

4. adevice of the class described, fuel'` 'gas and oxygen pipes lyingside byside, a

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"inected lto the header, and means in said .nectedb'y means of a header to the .opposite 1 headerfeonnected to" both' said pipes, said header' having a slot therein, a supplementary oxygen pipe having a laterally pro]ect ing arm adapted tol enter said slot, and a' set screw toengage said arm; in the slot.

-5. ln a device of theiclass described, a head having a chamber therein, a` plug adapted tol'gbe screwed into saidvhead, a flange on-the plug Withinthe head, said flange having radial perforations there-cV through, within 4said flange and having lan axial duct therein..

and an inner blolckfadapted Lolita` 'the flange, said block having converging ducts leading to the center from said annular chamber, and said block also having an axial duct meeting said converging ducts.

i'. In a device of the class described, a head having a mixing chamber therein, a plug adapted to be screwed into said chamber, an attachment to he fastened to the plug, the meeting facce having depressions adapted to register at different angular positions, and locking means to engage such depressions.

8. In a device of the class described, a head having a mixing chamber therein, a plug adapted to be screwed into said chambei', an attachment to befastened to the plug, the meeting faces of the fplug and said attachment havin means or fixing 44hem together at any esired vangular adrjustment, and a nut adapted to engage' the plug and attachment and draw them tightly together.

In a device of the class described, ahead having a mixing chamber therein, a plug adapted to be screwed into said chamber, an attachment to be fastened to the plug, the meeting faces of the plu and said attachment having means for Xing them together at any desired angular adjustment, Said attachment. having a high pressure oxygen pipe leading thereto, and separate conduits.therethrough ior mixed ckygen and acetylene in one conduit and high pressure oxygen in the other conduit.

l0. ln a device ot the class described, a

torch head having n central conduit therethrough t'cr mixed oxygen and acetylene and an eccentric conduit for high preesurc oxygen, branching conduits 'from the central conduit Iopenin f at the end ot' the torch head, and a centralD aperture at the end of the torch head connected to the said eccentric conduit.

ll. In a device ot the class described, a torch head comprising a cylindrical block and a screw cap fitting over the same, said block and caphaving meeting annular channels to form an annular chan'lbcr, a duct through the said block to convey mixed oxygen and acetylene to the annular ehamber,.

converging ducts -from said annular chamber to the end of the cap to discharge such mixture, and a central duct through the end of the cap registering 4with a duct in the block to discharre high pressure oxygen from the end of tne cap.

In testimony whereof, I have subscribed my name.

CARL JOHNSON.

Witnesses HENRY A. Panne, ANNA L. VAL'roN. 

